“The dust returns to the earth from which it came, and the spirit returns to God who gave it.” (Eccl 12:7)
Naturalism is a point of view that consists essentially in looking upon nature as the one original and fundamental source of all that exists, and hence attempts to explain everything in terms of nature (For a fuller explanation, see
Naturalism )
Concerning the human mind, naturalism attempts to explain everything in terms of the neuro-physiological processes of the brain. This tendency is characteristic of the proponents of
metaphysical materialism, double-aspect theory, epiphenomenalism and behaviorism.
However, we can see that the account of mind proffered by naturalism is clearly absurd in that they assert that an action is and is not a particular process at the same time. That is, the physiologist can accurately describe the function of the human body including the brain. But no part of that description describes consciousness, thought, sensation, feelings, or imagination. Physiologists or brain researchers are providing more and more detailed description of physiological processes. And if we ask them to describe thought or imagination, they have nothing more to add, yet they adamantly claim the mind is strictly a function of the brain states.
Nonetheless, if thinking were merely resultant of certain physiological processes they would be identical with the complexus of these processes, and any physiological description would be a description of thought, and so on. But this is clearly not the case. Anyone’s description of their conscious mental activities bear no resemblance whatsoever to the physical descriptions provided by the physiologist.
Here is where we must highlight the failed logic of naturalism, which is nothing more than an unwarranted reductionism. The reduction of mind to brain states is based on the naturalist’s logical fallacy. The naturalist assumes that he has already established the basic character of the world in which consciousness arises. So, when he comes to account for human consciousness he forces his account into terms that fit his preconceived notions about the nature of reality.
The logical fallacy the naturalist commits, which is an inductive fallacy, is to favor certain kinds of data over other equally evident kinds of data. The naturalist favors the phenomenal data provided by the natural sciences, while subordinating the data of human experience, which includes reflective consciousness, conceptual thinking, free will, religion, science itself, and so on.
However, the mysteries of the human mind will forever elude the naturalist who has limited himself to physiological descriptions.